The Cardinals waived Robertson on Tuesday per the NFL's official transaction page.

EDGE Analysis

The 27-year-old was activated to the 53-man roster from the practice squad Nov. 8, but only suited up in two games for the team, unable to secure a fantasy-relevant stat. Robertson will hit the open market looking for a reserve role, as he's appeared in just six games in his NFL career.

Robertson was signed to the Cardinals' active roster Friday, Darren Urban of the Cardinals' official site reports.

EDGE Analysis

Robertson's promotion comes on the heels of Brooks Reed being placed on injured reserve. The edge rusher is currently a depth option behind starters Terrell Suggs (hamstring) and Chandler Jones, but he is an injury away from playing a significant role in the Cardinals' defense.

Robertson, who was dealing with an injured shoulder at the end of last season, has impressed coach Jay Gruden throughout training camp, John Keim of ESPN.com reports.

EDGE Analysis

Robertson is back at full strength and will be an under-the-radar option at linebacker to keep an eye out for throughout camp. He notched four tackles in as many games during his first year in the league last season.

Robertson injured his shoulder in Sunday's game against the Giants and didn't return.

EDGE Analysis

Robertson has played in just four games for Washington this season, recording four tackles (two solo). Details about whether this will be a long-term issue will likely be released in the near future.

Robertson was promoted to the Redskins' active roster Tuesday, Stephen Czarda of the Redskins' official site reports.

EDGE Analysis

This is Robertson's second time being promoted to the Redskins' active roster this season, with the first coming during Week 12's Thanksgiving showdown with the Giants. Look for the rookie to primarily play on special teams.

Robertson was waived by the Redskins on Monday.

EDGE Analysis

The depth linebacker became an expendable asset when the team opted to bring in more interior lineman help. Washington claimed offensive tackle Kyle Kalis off waivers Monday all but closing the door on Robertson's time in the nation's capitol.

The Redskins signed Robertson off their practice squad Tuesday, John Keim of ESPN.com reports.

EDGE Analysis

Robertson has been working out at both inside and outside linebacker since joining the Redskins' practice squad, so he'll bring some versatility to the second level. While it's unlikely that Robertson will see extended snaps on defense during his time with Washington, the depth he'll provide isn't insignificant with Will Compton (foot) and Mason Foster (shoulder) on injured reserve and three of the team's other linebackers on the injury report heading into Thursday's game against the Giants.